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Finding the Fourth Proportional to 570,904.22, 856,370.20 and 191,830.38

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Solution

The fourth proportional to 570,904.22, 856,370.20 and 191,830.38 is: 287,750.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,904.22 : 856,370.20 = 191,830.38 : x
  2. Step 2: Convert to fraction form
    570,904.22/856,370.20 = 191,830.38/x
  3. Step 3: Cross multiply
    570,904.22x = 856,370.20 × 191,830.38
  4. Step 4: Simplify right side
    570,904.22x = 164,277,820,886.68
  5. Step 5: Solve for x
    x = 164,277,820,886.68/570,904.22
  6. Step 6: Final answer
    x = 287,750.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.